A certain unlikely hero...
Touma Kamijou has the worst luck imaginable... Sure he's a citizen of Academy City, a scientific marvel of the modern world where superhuman abilities are artificially cultivated and commonplace, but when it comes to paranormal talent, Kamijou's been classified a Level Zero-a loser, basically. Oh, he does have one trick up his sleeve (literally), but even that's more trouble than it's worth.
When Kamijou encounters a delusional young girl convinced she's a nun and raving about being chased by evil sorcerers, he's eager to send her on her way and get back to...

A certain unlikely hero...
In Academy City, where superhuman abilities are scientific reality, Touma Kamijou is trying to reconstruct a life for himself, but that's easier said than done with a girl by his side with the arcane knowledge of 103,000 grimoires rattling around in her brain...
Now seemingly inextricably caught up in a world where magic is a reality, Kamijou learns that a certain shrine maiden is being held captive in one of Academy City's cram schools. Can Touma ally himself with a sorcerer who has on more than one occasion tried to do him in? The only thing he knows for...

(Volume 6)Accelerator has killed thousands of Sisters--clones of Mikoto Misaka designed as cannon fodder to bring out his true abilities. But when a stunted Sister calling herself "Last Order" asks for his help, is this a chance for the Academy City's most terrifyingly powerful esper to redeem himself?

"Appearing at a one-way street is the armed organization Hound Dog, led by Amata Kihara. And standing before Touma is Vento of the Front, of God's Right Seat. The violent fangs of both science and magic sink into Academy City"--Publisher marketing.